Home / 76,401.50-105,360.62-45,769.73

Finding the Fourth Proportional to 76,401.50, 105,360.62 and 45,769.73

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Solution

The fourth proportional to 76,401.50, 105,360.62 and 45,769.73 is: 63,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,401.50 : 105,360.62 = 45,769.73 : x
  2. Step 2: Convert to fraction form
    76,401.50/105,360.62 = 45,769.73/x
  3. Step 3: Cross multiply
    76,401.50x = 105,360.62 × 45,769.73
  4. Step 4: Simplify right side
    76,401.50x = 4,822,326,374.38
  5. Step 5: Solve for x
    x = 4,822,326,374.38/76,401.50
  6. Step 6: Final answer
    x = 63,118.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.